ASTROSAT CZTI

Data Quality Report

Orbit 17016

Creation date: 2024-06-27T17:30:49.831645
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_206T01_9000002528_17016cztM0_level2.evt modeM0/AS1A05_206T01_9000002528_17016cztM0_level2_quad_clean.evt
Size (bytes)518,129,280112,849,920
Size494.1 MB 107.6 MB
Events in quadrant A3,949,729745,328
Events in quadrant B3,691,477763,448
Events in quadrant C3,213,337732,376
Events in quadrant D4,378,596705,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162842
B0155242
C0138962
D0176132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67571822.693503%
B67571291.909131%
C6757450.665976%
D67573465.120616%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7673 6759 103 103 1.34% 1.52%
B 7673 6759 34 34 0.44% 0.50%
C 7673 6759 0 0 0.00% 0.00%
D 7673 6759 276 276 3.60% 4.08%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 892402 5628.13 788 769 158.4
A 14 250 20752 126.13 788 769 158.4
A 0 226 6970 39.14 788 769 158.4
B 15 35 198770 1301.85 794 773 152.1
B 7 220 170432 1115.52 794 773 152.1
B 0 219 66093 429.49 794 773 152.1
C 3 233 117993 661.03 757 760 177.3
C 14 238 117987 660.99 757 760 177.3
C 8 128 10964 57.54 757 760 177.3
D 1 52 1334677 7192.26 757 732 185.5
D 5 222 55484 295.21 757 732 185.5
D 10 70 35906 189.65 757 732 185.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter